8 1/2 tommer Hainaisen populære størrelser Tricone Bit / vand godt TCI Tricone Bits/høj kvalitet Tricone Drill Bit
populære størrelser tricone bit / vand godt TCI tricone bits/høj kvalitet tricone borehoved,Website:, nye stål tand bit, blød og medium dannelse/tricone bit/godt boringSend product request
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91/2 «HS952XA хорошего качества API спецификации низкая цена нефти стальной корпус PDC сверла | стальной корпус сверла, хорошее качество, низкая цена, налива сверло, хард-рок сверло, каменные Бурение бит, pdc долота, Долота алмазные | |
83/4" HM652XG ڈرل بٹ کے ساتھ اعلی معیار واحد ڈائمنڈ ڈرل بٹ | چین کے ڈویلپر ہیرے پدک ڈرل بٹ | |
81/2" HM952XAG chất lượng cao Pdc khoan Bits.drill bit cho Rock Daimond khoan | 81/2" HM952XAG chất lượng cao Pdc khoan Bits.drill bit cho Rock Daimond khoan, kết hợp cắt Pdc khoan Bit | |
81 /2 " ХМ642XГ направљено у Кини топле продају Даимонд Пдц битова бушење нафте па бушење | вруће продаја /диамонд пдц процедуру битним /пдц дрилллинг комаде /петролеум бушење делици | |
9 1/2"HM642XA 高品質 API PDC 鑽頭的中國製造商油田 | 中國的製造商石油領域/高品質/pdc 鑽頭鑽頭/pdc 鑽頭 |
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